65005165 has 8 divisors (see below), whose sum is σ = 78059520. Its totient is φ = 51968592.

The previous prime is 65005151. The next prime is 65005201. The reversal of 65005165 is 56150056.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65005165 - 2⁵ = 65005133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5716 + ... + 12754.

It is an arithmetic number, because the mean of its divisors is an integer number (9757440).

Almost surely, 2^65005165 is an apocalyptic number.

It is an amenable number.

65005165 is a deficient number, since it is larger than the sum of its proper divisors (13054355).

65005165 is a wasteful number, since it uses less digits than its factorization.

65005165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 65005165 is about 8062.5780616376. The cubic root of 65005165 is about 402.0832253453.

The spelling of 65005165 in words is "sixty-five million, five thousand, one hundred sixty-five".